<template>
    <div class="rank" ref="rank">
        <scroll :data="topList" class="toplist" ref="toplist">
            <ul>
                <li @click="selectItem(item)" class="item" v-for="item in topList">
                    <div class="icon">
                        <img width="100" height="100" v-lazy="item.picUrl"/>
                    </div>
                    <ul class="songlist">
                        <li class="song" v-for="(song,index) in item.songList">
                            <span>{{index + 1}}</span>
                            <span>{{song.songname}}-{{song.singername}}</span>
                        </li>
                    </ul>
                </li>
            </ul>
            <div class="loading-container" v-show="!topList.length">
                <loading></loading>
            </div>
        </scroll>
        <router-view></router-view>
    </div>
</template>

<script type="text/ecmascript-6">
  import {getTopList} from "api/rank"
  import {ERR_OK} from "api/config"
  import Scroll from 'base/scroll/scroll'
  import Loading from 'base/loading/loading'
  import {playlistMixin} from 'common/js/mixin'
  import {mapMutations} from 'vuex'

  export default {
    mixins: [playlistMixin],
    name: 'rand',//排行页面
    components: {
      Scroll,
      Loading
    },
    data() {
      return {
        topList: []
      }
    },
    created() {
      this._getTopList()
    },
    methods: {
      handlePlaylist(playlist) {
        const bottom = playlist.length > 0 ? '60px' : ''

        this.$refs.rank.style.bottom = bottom  //底部播放器适配
        this.$refs.toplist.refresh() //强制scroll重新计算
      },
      selectItem(item) {
        this.$router.push({
          path: `/rank/${item.id}`
        })
        this.setTopList(item)
      },
      _getTopList() {
        getTopList().then((res) => {
          if (res.code === ERR_OK) {
            // console.log(res.data.topList)
            this.topList = res.data.topList
          }
        })
      },
      ...mapMutations({
        setTopList: 'SET_TOP_LIST'
      })
    },
  }
</script>

<style scoped lang="stylus" rel="stylesheet/stylus">
    @import "../../common/stylus/variable"
    @import "../../common/stylus/mixin"
    .rank
        position: fixed
        width: 100%
        top: 88px
        bottom: 0
        .toplist
            height: 100%
            overflow: hidden
            .item
                display: flex
                margin: 0 20px
                padding-top: 20px
                height: 100px
                &:last-child
                    padding-bottom: 20px
                .icon
                    flex: 0 0 100px
                    width: 100px
                    height: 100px
                .songlist
                    flex: 1
                    display: flex
                    flex-direction: column
                    justify-content: center
                    padding: 0 20px
                    height: 100px
                    overflow: hidden
                    background: $color-highlight-background
                    color: $color-text-d
                    font-size: $font-size-small
                    .song
                        no-wrap()
                        line-height: 26px
            .loading-container
                position: absolute
                width: 100%
                top: 50%
                transform: translateY(-50%)

</style>
